Active: Billy activates his gatling gun, spraying bullets in a 90° cone in front of him for 4 seconds. Enemies in the cone on Gatling Gun's activation take physical damage, and continue to suffer these effects every 0.5 seconds while they remain in the gunfire, for a maximum of 10 stacks of damage from Gatling Gun. Billy can't attack, and use other abilities during Gatling Gun's effect.

Cooldown:10 / 7.5 / 5s

Cost:25 / 50 / 75 / 100 mana

Physical Damage:20 / 30 / 40 / 50 (+25% AD)

Range:600

Mines

Active: Billy places a mine on the map. If an enemy steps on the mine, it will explode, dealing physical damage plus the target's health. The mine last 20 second, then explode. Billy will store one every several seconds and can only hold five mines at a time. Each cast uses one mine.

Cooldown:2.5 / 2 / 1.5 / 1s

Cost:25 / 50 / 75 / 100 mana

Range:250

Explosion Physical Damage :25 / 50 / 75 / 100

Bonus Damage:10% of target's maximum health (+50% AD)

Activation Diameter:200

Explosion Diameter:400

Sight Diameter:500

Skill

Toggle: Each of Billy's autoattacks will increase extra attack speed at the cost of some mana. Additionally he permanently increases his physical damage whenever he kills a unit, from either his attacks or abilities.

Cost:2 / 4 / 6 / 8 mana per attack

Extra Attack Speed:+1% / 2% / 3% / 4%

Physical Damage Gained:0.5 / 1 / 1.5 / 2 per 5 / 10 / 15 / 20 kill

Headshot

Active: Billy channels for 1 second, providing vision of target enemy champion. She then fires a lightning-speed projectile to the target, dealing physical damage to all the enemy in the line and target champion.